platform:msm_shared: disable DSI ISR for both controller
platform:msm_shared: disable DSI ISR for both controller

dsi_off API was disabling DSI ISR for controller-1 by
setting fixed offset. This offset change from target
to target and can cause the boot crash due to enabled
ISR. Fix register offset by selecting respective controller
base address.

Change-Id: I282faebb95e55b64293359ef06a607b62215f460

CanarySolutions/little-kernel,Foxda-Tech/polaris-bootable-bootloader-lk,Foxda-Tech/polaris-bootable-bootloader-lk,Foxda-Tech/polaris-bootable-bootloader-lk,Foxda-Tech/polaris-bootable-bootloader-lk,CanarySolutions/little-kernel,CanarySolutions/little-kernel,Foxda-Tech/polaris-bootable-bootloader-lk,efidroid/lk,efidroid/lk,CanarySolutions/little-kernel,efidroid/lk,efidroid/lk,CanarySolutions/little-kernel,efidroid/lk